US1643156A - Ball race - Google Patents

Description

Sept. 20, 1927 F. T. FARMER BALL RACE Filed Feb. 27. 1925 Patented 1927 y a v WW9 *i?.Af-* *T estricts SE in ROBERT FiaANK '1. 'EARMER, 7 oriflnn'zr itoir \Miciirean, sesam -F oiiE HAL ,rEARMER, 1 or T NEW YORK, 'N. Y.

"BALURAGE. Y

} era- 5 5mm mea reb'mar 27:, -:1e25. sema1:maiadoz.

I -*-l\iy invention relates=toballrbearings :parscauses considerable'looseness'of'the'reelisha-ft V --ticularly adaptedfor use'nr connectmn vvith *1n;1tsbea-rings,'5 aiidzaaifects' the bearings; at ra s l k i g f-:1 wn: mowers. sThe whothendsofthe reel Shaftalike, whereupon -bearings -of thQ-TGVOlV-lng 'kIIIVQSIiOf: {LIIRWII theimower r-fails; ,tocut properly. ;;If: the

' 5 inower musfibe kept tight-sinirorder. thatthe end- :frame'Whi'ch carv-riesthe'female race be- 60 knives "may' fi'unotion? p roper'ly bycforming va e-comes loose and changes; position'no-:n1atter butting or shearing contactwwithstheifstavhow"sli'ght.from the originalsetting, the --tionary-knife. 'Ifi the:bearing is;loose;the reel 'bQGOHlEBSflIOOSG iII its bearings at both 5 blades Of-therevolvfiing khife -Will 'l i fti'upoff nendsy when three point: contact ba-ll-bearings "of the stationaryiaknife :2 anal-aims;prevent -are :used. r s 4 {them 'from cutting i J e e i gie hedrawings a -mo One of-the objects oft-my invention-ism -complete.;disclosure;of=theyinvention; prov ide'aballi-b'earing that willipermit of-an :Eigure his a section ofthe-heMing-iongi- -end movementzoflthershaft;without changmtudi nally ofgthe shaft. 7

in the alinementiiofithesashaftyon-ethe close Figa-2 is-a sectionF-on the2'.-line.-2 2 of 7" s :fit-ting ofsfithei'iballs-sb tween' therinaile-{and Fig: 1.

.fgmajleg-racgg 1 o itAdaptedyto 'be secured-to the revolving An'oth'er objectistoiprovide" a ball-bearing f shaft 1' by! EHiea-HSP of? the set screw i 2, for lit-VII 1110\V61'Sfithflt. will permit a slight passing through'the boss- 5,-.isthemalebearishifting Of-t-l1e; BI1d frames-"that contain-the ing 3,; prov i d '--Wi hth ra way ha a housing ofathe ballrehearing without-rlooseuwfierlge 7 i fiiiS fiQ'fliHSiEfiilhB outer endlof ringthe b10SLdj11StH1EI1tf Ofl'lthG ball; contact filhe ;-housing 851:0 .sealathe; bearings-against fbet-weenrthe male?aridxfemaleiraces. V I entrancebfdirt-aswella-astofiform athrust "Aistill further-object is tapro'vide asiinpie 1 1 wh ch W l: :"P V -1 1 --playin the and easy.imeans zfor'taking upwthe wear of :Sh t- V I v .the'balls and recess-soresrto keep the-vballs The housing 8 represents a portionof. the light within: the races and consequently preen d f iof il n r n s p vid d --ventzany play.- ofvt he shaft in its'gl'iearing's. :Wlth Mem e hi ed p vreceive Yeti'anQther 'ObjeCt i 1-t vid '4 -11 the femaleball racelO Whichintheform lbearing, that-in casesthewbearing;atiions end of a ll g, $12 {at 9- at,itsdiameter 85 of the haft beco neg loose, it willu have no can-beichanged. through the medium of-the "effectnpoir:thehdjmstment-of;the-bearing at mpr s l mp-12 which fi l a recess the other end of the shaft. I 13ithe said houshig. v-The housing 8 is In order that my invention may be better p v ded yvith a bossfl'gthioughxwhich aset understoodf'l shall oint out the insuf- S01f6Wv15 threaded and whichwengageskthe 9 fi i i f th t f ball b i now i said compressor clamp to vary' thediameter general use onlawn mowers. of the female l a As stated before a lawnmower reel, or the he balls 16 are held in the 0119150111511? revolving knives, in orderto function propball mg g r 40 erly must be tight in its bearings. The usual p ctice, the l s ng 8 is bored to re- 95 form of ball bearings used for reel bearings 9 e female r e 10 Which is pressed in lawn mowers, is What is termed the three Into P lOIL, with the slot 11 opposite the i t t t b i Th t i 91 recess 13. The compression clamp 12 is then mounted on. the reel shaft and a cup is placed in the recess 13 and the set screw 15 mounted in the housing; of the end frame. 'S n on the Said clamp Secure The balls mountedin suitable retainers are It n P S ti The groove 4 of the male placed in th cup and th cone i rt d bearing is turned to the correct diameter so against the balls. The contact of the balls that. Wh n the balls are placed in position on the cone and cup is just a single point, therein, they will just fit in the inside circle and alfords the smallest possible Wearing of the female race. -The hub 18 is made of surface. The diameter of thecone contact such a size as Willpermit the balls to just point being much smaller than the contact pass over it, when they are expanded as 'far point in the cup, the cone bearing Wears as theloose fit of the ball retainer Will perfaster. The slightest Wear of any of the ball mit.

55 contact points of the male or female races, Any play that may be found, due to the V balls not fitting tight between the male and female race, can be taken up by screwing the set screw 15 down on the compressor clamp, to contract the diameter 01 the female race, until the balls tit close in the groove i.

The load on the shaft in a bearing is always at some fixed point. The slot ll is located in the housing opposite to the point of application of the resultant load. When a bait is passing over the slot 11, the two adjacent balls will steady the male bearing should female race will have no etl ect upon perfect smooth running of the hearing.

it will be apparentthat it the male race should separate from the housing due to the end frame of the mower becoming ioose and spreading apart, the balls can change their position in the female race, but their position in the n1ale race would not be affected. Any looseness of the balls in the hearing at one end of the shaft will have no elleet on the adjustment of the ball hearing at the other end ot the reel shaft.

From the above description it will be. apparent that I have produced a device of the character described, which possesses all the features enin'nerated as desirable, and while I have illustrated and described the preferred form of the invention, it will be understood that I reserve the right to all changes properly *l'alling within the scope and spirit of the appended claims.

Therefore what I claim as new and desire to secure by Letters Patent, is

1. A ball bearing comprising an inner race. means for securing the said race to a shaft, an outer race, means for securing the outer race to a stationary housing, balls interposed. between the said races. a groove in the inner race to hold the said balls against endwise increment, thg surface of the outer race permitting endwise movement relative to said halls.

the

it be required, and the slot in the 9. A ball bearing comprising an inner 1 race, means for securing the said race to ashat't, an outer race, means for securing. the outer race to a stationary housing, balls interposed bet-ween the said races, a groove in the inner race to hold the said balls against endwise movement, the surface of the outer race permitting endwise movement relative to said balls, a thrust collar limiting end movement of the shaft in one direction.

A ball bearing comprising an inner.

oi? the outer race permitting endwise noveinent relative to said balls.

i. A ball bearing comprising an inner race, means for securing the said race to a shaft, an outer race, means for securing the outer race to a stationary housing, balls interposed between the said races, th said outer race con'iprising a splitring, the split.

in the ring being placed opposite the point carrying the load, and means for closing the ring to reduce its diameter and thereby make the balls lit close to the inner race, a groove in the inner rare to hold the said balls against endwise movement, the surface or the outer race permitting endwise movement relative to said balls, and. a thrust col' lar limiting end movement oi the shaft in one direction.

In testimony whereoil? I hereunto atlix my signature. i

FRANK '1. rain uni-z.

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